Interesting about aluminum solder

Interesting about aluminum solder? Supplier Avlob offers to buy aluminum solder at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.

Aluminum-silicon solders

Aluminum and silicon form a simple metallographic system with a eutectic, which corresponds to 11.7% silicon. This alloy has a low melting point, which is 5770 C. The most well-known alloys of this group are silumin, which contain 4… 13% silicon. All differ good fluidity, at temperatures not exceeding 630 ° C. The lack of silumins — low plastic properties, so the parts connected with them should not undergo tensile loads more than 3… 4%;

Aluminum-copper.

Along with aluminum-silicon brazing alloys are used for soldering aluminum, and although they give a low melting point, they give the zone of the soldered seam high corrosion characteristics; Supplier Avlob offers to buy any solder at a bargain price. The price is the best in this segment of rental.

Triple solders are aluminum-copper-silicon.

The solder of the triple solder 34A is the most common: it has a lower melting point than aluminum-siliceous alloys, so during soldering, one should not be afraid of burning and reflowing the joint zone. The technology of preparing such a solder, however, is quite complex. First, intermediate ligature is prepared, which includes 50% copper and 50% silumin eutectic composition. Then the mixture is reconnected with the required quantity with the required amount of silumin, and the solder is melted in the furnace at a temperature of 650… 700 ° C. The melting of the solder is poured on readiness into long and narrow molds, forming rods / bars with a cross section of 4… 8 mm.

Soldering Features

The fragility of all solders containing aluminum, makes wider use of the technology of flux-free soldering. This method allows you to dispense with the scarce additives — magnesium and germanium. The essence of the process lies in the fact that volatile components are introduced into the solders. More commonly used are zinc, antimony and phosphorus. Solders of this type contain about 8… 11% aluminum and silicon, as well as up to 10% of one of the above elements. Elements are applied in the form of a thin clad layer before the soldering process begins. When heated, the evaporation of these solder components begins, accompanied by the active dispersion of the surface film of aluminum dioxide. Thus, soldering is constantly conducted in a protective atmosphere, at temperatures of 580−600 ° C. Acceleration of the process can be achieved by pumping air from the formation zone of the solder joint. As a result, increased strength and corrosion resistance is achieved.

Delivery, price

Interesting about aluminum solder? Buy aluminum solders at an affordable price from the supplier Avgob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy aluminum solder at the optimal price in bulk or at retail. We invite you to partner cooperation